PRI T1 and ISDN Phone System Quote

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Prices for T1 and ISDN PRI services keep going down and looking for a better plan can save your company thousands of dollars. Telcom & Data works with hundreds of carriers to provide you with plans that can include unlimited calling, voice and data over a single circuit, special calling plans and rates to foreign countries. Telcom & Data can find a plan designed specifically to your calling needs.

Why waste time with having several sales people coming by your office? Our online service can provide you with the best quotes on voice and data services for your area - fast!  We can also provide complete coordination and implementation of a new ISDN PRI or T1 circuit.  Since 1996 we have helped thousands of customers save money and receive better service and features. Fill out the quick form or call us at


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What is an ISDN PRI?

ISDN PRI T1 Primary Rate Interface

Many telephone service providers have been talking about it lately. PRI or Primary Rate Interface is an ISDN equivalent of a T1 circuit. Most businesses currently use POTS lines. Plain Old Telephone Service or “POTS” Lines are the standard analog lines that provide local dial tone for the small to medium size business. They are used for such things as making and receiving telephone calls, faxing, modems, security systems and credit card/ATM machines. For each POTS line there is a port in the phone system. Costs associated with POTS lines vary by region. POTS lines carry monthly fees and taxes associated with each line. This can add up to be very expensive. POTS service is also referred to as switched service. The rule of thumb is at 10 POTS lines with DSL or Cable there is a break even. Anything over 13 Pots lines you can start to experience real savings.

ISDN PRI digitally delivers your local, long distance, Direct Inward Dial (DID) and internet service over one 4-wire interface. Your ISDN PRI T-1 has 23 channels that move voice and data along nicely at 64 Kbps. Consolidation makes sense because you reduce your network costs by incorporating ISDN PRI into your existing telecommunications blueprint, thus eliminating POTS line charges to the local exchange carrier. The D Channel is the 24th Channel. It constantly communicates with the Central Office ensuring the proper bytes and uninterrupted transmission.